/Engine/Plugins/Importers/USDImporter/Source/USDStageEditor/Public/USDStageEditorBlueprintLibrary.h
Returns the full identifiers of all layers that are currently selected on the USD Stage Editor.
The list of identifiers (e.g. ["c:/MyFolder/root.usda", "c:/MyFolder/sublayer.usda"])
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="USD|Selection") static [TArray](API\Runtime\Core\Containers\TArray)< [FString](API\Runtime\Core\Containers\FString) > GetSelectedLayerIdentifiers()